Chapter 11 Flashcards
After 1800, the United States militantly expanded westward across North America, confident of its right and duty to gain control of the continent and spread the benefits of its “superior” culture.
Yet, this expansion led to debates about the fate of slavery in the West, creating tensions between North and South that ultimately led to the collapse of American democracy and a brutal civil war.
In 1803, Thomas Jefferson appointed Meriwether Lewis to organize an expedition into the Louisiana Territory to explore and map the area but also to find an all-water route from the Missouri River to the Pacific Coast.
For centuries Europeans had mistakenly believed an all-water route across the North American continent existed. This “Northwest Passage” would afford the country that controlled it not only access to the interior of North America but also—more importantly—a relatively quick route to the Pacific Ocean and
to trade with Asia.
JEFFERSON’S CORPS OF DISCOVERY HEADS WEST - To head the expedition into the Louisiana territory, Jefferson appointed his friend and personal secretary, twenty-nine-year-old army captain Meriwether Lewis, who was instructed to form a Corps of Discovery.
Lewis in turn selected William Clark, who had once been his commanding officer, to help him lead the group.
The corps spent their first winter in the wilderness, 1804–1805, in a Mandan village in what is now North Dakota. There they encountered a reminder of France’s former vast North American empire when they met a French fur trapper named Toussaint Charbonneau. When the corps left in the spring of 1805, Charbonneau accompanied them as a guide and interpreter, bringing his teenage Shoshone wife Sacagawea and their newborn son. Charbonneau knew the land better than the Americans, and Sacagawea
proved invaluable in many ways, not least of which was that the presence of a young woman and her infant convinced many groups that the men were not a war party and meant no harm.
Although the Corps of Discovery failed to find an all-water route to the Pacific Ocean (for none existed), it nevertheless accomplished many of the goals Jefferson had set. The men traveled across the North American continent and established relationships with many Indian tribes, paving the way for fur traders like John Jacob Astor who later established trading posts solidifying U.S. claims to Oregon. Delegates of several tribes did go to Washington to meet the president. Hundreds of plant and animal specimens were collected, several of which were named for Lewis and Clark in recognition of their efforts. And the territory was now more accurately mapped and legally claimed by the United States. Nonetheless, most of the vast territory, home to a variety of native peoples, remained unknown to Americans.
Realizing that conflict between the United States and the Creeks and Seminoles would continue, Spain opted to cede the Spanish colony to its northern neighbor. The Adams-Onís Treaty, named for Adams and the Spanish ambassador, Luís de Onís, made the cession of Florida official while also setting the boundary between the United States and Mexico at the Sabine River. In exchange, Adams gave up U.S. claims to lands west of the Sabine and forgave Spain’s $5 million debt to the United States.
The Missouri Crisis created a division over slavery that profoundly and ominously shaped sectional identities and rivalries as never before. Conflict over the uneasy balance between slave and free states in Congress came to a head when Missouri petitioned to join the Union as a slave state in 1819, and the
debate broadened from simple issues of representation to a critique of the morality of slavery.
Northern representatives supported the Tallmadge Amendment, denouncing slavery as immoral and
opposed to the nation’s founding principles of equality and liberty. Southerners in Congress rejected
the amendment as an attempt to gradually abolish slavery—not just in Missouri but throughout the
Union—by violating the property rights of slaveholders and their freedom to take their property wherever they wished. Slavery’s apologists, who had long argued that slavery was a necessary evil, now began to perpetuate the idea that slavery was a positive good for the United States. They asserted that it generated wealth and left white men free to exercise their true talents instead of toiling in the soil, as the descendants of Africans were better suited to do. Slaves were cared for, supporters argued, and were better off exposed to the teachings of Christianity as slaves than living as free heathens in uncivilized Africa. Above all, the United States had a destiny, they argued, to create an empire of slavery throughout the Americas. These proslavery arguments were to be made repeatedly and forcefully as expansion to the West proceeded.
Congress finally came to an agreement, called the Missouri Compromise, in 1820. Missouri and Maine (which had been part of Massachusetts) would enter the Union at the same time, Maine as a free state, Missouri as a slave state. The Tallmadge Amendment was narrowly rejected, the balance between free and slave states was maintained in the Senate, and southerners did not have to fear that Missouri slaveholders would be deprived of their human property. To prevent similar conflicts each time a territory applied for
statehood, a line coinciding with the southern border of Missouri (at latitude 36° 30’) was drawn across the remainder of the Louisiana Territory. Slavery could exist south of this line but was forbidden north of it, with the obvious exception of Missouri.
The establishment of the Lone Star Republic formed a new chapter in the history of U.S. westward expansion. In contrast to the addition of the Louisiana Territory through diplomacy with France, Americans in Texas employed violence against Mexico to achieve their goals. Orchestrated largely by slaveholders, the acquisition of Texas appeared the next logical step in creating an American empire that included slavery.
AMERICAN SETTLERS MOVE TO TEXAS - After the 1819 Adams-Onís Treaty defined the U.S.-Mexico boundary, Spain began actively encouraging Americans to settle their northern province. Texas was sparsely settled, and the few Mexican farmers and ranchers who lived there were under constant threat of attack by hostile Indian tribes, especially the Comanche, who supplemented their hunting with raids in pursuit of horses and cattle.
THE TEXAS WAR FOR INDEPENDENCE - Their greatest source of discontent, though, was the Mexican government’s 1829 abolition of slavery. Most American settlers were from southern states, and many had brought slaves with them. Mexico tried to accommodate them by maintaining the fiction that the slaves were indentured servants. But American slaveholders in Texas distrusted the Mexican government and wanted Texas to be a new U.S. slave state. The dislike of most for Roman Catholicism (the prevailing religion of Mexico) and a widely held belief in American racial superiority led them generally to regard Mexicans as dishonest, ignorant, and backward.
REMEMBER THE ALAMO! - Battle of San Jacinto
THE LONE STAR REPUBLIC -
The acquisition of additional lands from
Mexico, a country many in the United States perceived as weak and inferior, was not so bloodless. The Mexican Cession added nearly half of Mexico’s territory to the United States, including New Mexico and California, and established the U.S.-Mexico border at the Rio Grande.
JAMES K. POLK AND THE TRIUMPH OF EXPANSION - A fervent belief in expansion gripped the United States in the 1840s. In 1845, a New York newspaper editor, John O’Sullivan, introduced the concept of “manifest destiny” to describe the very popular idea of
the special role of the United States in overspreading the continent—the divine right and duty of white Americans to seize and settle the American West, thus spreading Protestant, democratic values. In this climate of opinion, voters in 1844 elected James K. Polk, a slaveholder from Tennessee, because he vowed to annex Texas as a new slave state and take Oregon.
